Scale.



A. DB VILBISS, Ji.

- SCALE.

APPLIOATIOH FILED APB.14,1905'.

Patentd Oct. 17,1911.

i' UNITED STATES PATENT OFFICE.

ALLEN DE VILBISS, 33., OF TOLEDO, OHIO, ASSIGNOR T TOLEDO COMPUTINGSCALE COMPANY, OF TOLEDO, OHIO, CORPORATION OF NEW JERSEY.

sdALE.

Specification of Letters Patent. Patented 0 1;, Application filed April14, 1905. Serial No. 255,650.

I To all whom it mag concern:

Be it known that I, ALLEN DE V1LBIss, Jr., a citizen of the UnitedStates, residing at Toledo, Lucas county, Ohio, have invented certainnew and useful Improvements in Scales, of which the following is aspecification.

My invention relates to certain improvements in scales, moreparticularly, though not necessarily, to that type of scale known as aneven balance scale and for the sake of a clear. and definitedescription, my invention is illustrated and described in connectionwith a scale of this particular type,

although it will be understood that my invention ma be applied to othertypes of scales of t e same general character. I therefore contemplateusing my invention wherever applicable.

In general terms, the object of my invention is to. provide means underthe control.

of the scale lever for indicating either or both underweight andoverweight, that is under or over weight, as compared with the weightwhich cooperates with a poise beam, whereby such weight or poise may beemployed in lieu of the usual movable weights placed on the weightplatform and said indicating means may be employed for the fractionalamounts of a pound or other unit of weight, such indicating means in itspreferred form being also employed as a nearweight detector, for thepurpose of indicating to the salesman that the load or article ofmerchandise on the load platform is near-weight My invention comprisesother novel and advantageousfeatures of construction and operation whichwill be apparent from the description hereinafter given.

In the accompanying drawing Figure 1 is a front elevation of an evenbalance scale embodying my invention; Fig. 2 a sectional elevation onthe line 22 of Fig. l,

and Fig. 3 a rear elevation of the middle portion of the scale. 7

Referring to the particular form of scale and the particular embodimentof my invention as herein illustrated, such scale comprises a base 1having uprights or standards 2 rising from the central ortion thereof,upon whose u per ends is plvoted or fulcrumed, on suita le bearings, thescale lever 3. In

weight platform 5 respectively. As is usual" in scales of the type nowbeing described, the

downward extensions of the platforms are connected with parallelogramarrangements which are so well known as not to require any description.The scale lever is also provided w1th a poise beam 6, suitably graduatedand, as shown, indicating poundsl0 pounds in the present instanceandadapted, in the preferred employment of my scale, to weigh the pounds ofthe load or article of merchandlse but not the fractions thereof, whichlatter weighing is done by separate mechanism hereinafter described. Aweight or polse 7 cooperates with the poise beam and is adapted to bemoved therealong so as' to welgh up different amounts. As stated, thecapacity of the poise beam is 10 pounds in the present instance, but aswill be obvious, the capacity of the scale may be increased by placingweights upon the weight platform 5. In the present modification of theeven-balance scale now being described, this is the only function whichis performed by the weight platform 5, but in the event that 10 poundsis a suflicient capacity for practical purposes, such weight platformmay be dispensed with altogether. further provided with a weight 8secured to or forming a part of the scale lever and arranged at themiddle portion thereof and provided for the purpose of weighting thescale lever or giving gravity thereto, as it is designated in scaleparlance. The scale lever is furthermore provided with means forcushioning its movements and to this end I operatively connect suchscale lever with a dash-pot 9 secured to the base of the scale, asindicated in Fig. 1. This dash-pot is desirable and advanta o'eous notonly when the scale is employed as hereinafter described, but also whenused as an ordinary even-balance scale, for one of the objections tosuch form of scale is that-when the load or article being weighed issuddenly removed from the load platform as is the case in actual use,-the The scale is weight platform is suddenly depressed with considerableshock, which objection is altogether avoided by the employment of mydash-pot.

ments of the scale lever is adapted to move or sweep over the face ofsuch chart, to which end such pointer is operatively connected with thepoise beam. In the present instance and as shown in the drawings, thelower end of the plate 10 is extended so as to form a frame or bearingfor a transverse pin 12, Fig. 2. The pointer or indicator is pivotednear its lower end upon said pin 12,

such pointer being extended as indicated in Figs. 2 and 3, for theurpose of counterbalancing the same. F or the purpose of moving orshifting the pointer or indicator in unison with the scale lever, Iprovide suitable connections between such parts, the operatingconnection in the present instance consisting of an arm 13 secured atits upper end at 14 to the scale lever at one side of its pivotal point.The lower end of this operating arm has a pin and slot connection withthe pointer or indicator and to this end, as herein shown, such arm isprovided with. a pin 15 received by a vertical or longitudinal slot 16in the ointer or indicator. It is evident from the oreg'oing descriptionthat the rocking movements of the scale lever are communicated to theindicator or ointer which when the scale lever is in alanced positionindicates zero on the chart.

In practice, the scale is operated as follows: Assuming for example thata customer calls for 10 pounds and 3 ounces of an article, the weight orpoise 7 is moved to the right (Fig. 1) to the indication 10 representing10 pounds which in the present instance is the capacity of the poisebeam 6. The salesman thereupon keeps placing or pouring the article uponthe platform 4 until the pointer or indicator 11 which has.

been moved to the left-hand side of the chart by the weight or poise 7,begins to 1move, thus indicating to the salesman that the article isgetting near-weight, and

cautioning the salesman to pour .mo're I slowly. When the pointerindicates zero on v v the chart, there is "exactly 10 ounds of thearticle on the platform' 4 an inorder to I get the fractional amount,the salesman,

continuing the pouring very slowly, watches such indicator until itpoints to the indication 3 which means 3 ounces. There is -article isremoved from this now exactly, under the example assumed, 10 pounds and3 ounces of the article on the platform 4. When such load or weighedlatform the scale lever does not move with a shock as usual in theordinary evenbalance scale,

but such movement is properly retarded by the dash-pot 9. -Under thisassumed example, the weight platform 5 plays no part whatsoever and maybe dispensed with altogether where the amounts being Weighed do notexceed the capacityof the poise beam 6 and the indications on the chart.

By the use of my invention I thus provide a near-weight detector andalso dispense with the usual movable weights, ordinarily used on theplatform 5. The advantage of the near-weight .device resides in the factthat the salesman is informed that while pouring the article he isgetting near-weight sothat there is no danger of pouring over-weight,requiring a dipping out with a scoop or the like of such over-weight andcontinuing the pouring operation until the exact amount is placed on theplatform 4:. The advantage of dispensing with the usual movable weightsfor the platform 5 is obvious when it is considered that the weight orpoise 7 performs practically all the functions of the numerous weightswhich are required in scales of this general character. Heretofore,

in the even-balance type of scale the poise beam 6 has been employed forthe fractional amounts, while the amounts in pounds have been providedfor by the weights placed on the weight platform 5.

It will be understood that in case the amount to be weighed is a numberof pounds within the capacit of the poise beam 6, the weight or poisewill be moved to that number and the salesman will watch the pointeruntil it will indicate zero but he will of course be notified in advanceof the fact that he is getting near-weight. In this particular instance,however, the pointer or indicator is employed as a nearweight detectorand also to indicate that the poise beam is in balanced condition andthe same is of course employed to indicate fractional amounts of apound. Furthermore, it will be understood that in case the amounts to beweighed are in excess of the capacity of the poise beam 6, a sufficientweight or a number of weights may be placed on the weight platform 5, soas to bring the scale up to the desired capacity.

I claim: I

1. In an even-balance scale, the combination of ascale beam havinga'load platform on one end and a weight'platform on the other, a"centrally located -'upright dial, a

pointer extending upwardly over said dial,-

indicator for weighing or indicating under and over weight, andoperating connections between the pointer and scale lever comprising anarm connected with such lever and having pin and slot connectiondirectly with the pointer; substantially as described.

3. In an even-balance scale, the combination of a scale beam having aload platform on one end and a weight platform on the other, a centrallylocated upright dial, a pointer extending upwardly over said dial, saidpointer pivoted below the beam in vertical alinement with the lattersfulcrum, and

an arm secured to the beam to one side of said fulcrum and having a slotand pin connection with the pointer.

4. In a scale, the combination of a beam centrally fulcrumed and havinga load-receiver on one end and a weight receiver on the other, apendulous weight hung from the central portion of the beam, a dial, a

pointer extending over the latter, a pinand-slot connection between thebeam and the pointer, a graduated poise beam carried by the main :beam,and a poise weight on said poise beam.

' ALLEN DE VILBISS, JR. Witnesses:

' S. E. HIBBEN,

LOUIS B. Enwm.

